williams



(No Model.) l l -J,.'F. OCONNORUS-IVL WILLIAMS. BARTH somfm No. 296,044 Patemea'Apr.,1,1884.

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ATTQRNEYS.

N. PETERS. Plyvlihgmphlr. Washington, D. C. v

- k UNTTED STATES f-P-.ATENT FFME; f l

I JOHN n; ozcoNNonANn STERLING M.` wILLIAMs, or nAvnNronr, Iowa.

I E ARTH-SCRAPER; f

` SPECIFICATION forming partof Letters Patent No. 296,044, dated April 1, 1884:'.`

Application filed J une 30,1883. (No model.) l

.Toa/ZZ whom it may concern.- i e Be it known that we, JOHN F. OCoNNoR and STERLING M."WILLIAMs, of Davenport, in the county of Scott and State of Iowa, `have invented a newand useful Improvement in Earth-Scrapers, of whichthe following is a full, clear, and exact description.

. Our invention relates to improvements in earth-scrapers; and it consists in the peculiar construction and arrangement of the parts, as hereinafter more fully set forth, and pointed out in the claims. i I

Reference is to be had to the accompanying drawings,forming apart of this speciiicatiomin which similar letters of reference indicate corresponding parts in both the igures.- Figure 1 is partly a side elevation and partly a longitudinal sectional elevation of our improved scraper, and Fig. 2 is a perspective view.

To a box or scoop of the scraper, made in two parts, c and b,`which are separated` transversely at `about the middle of the scraper from front to back, and connected at c by pivots, on which theycan swing to open and close the bottom, we pivot the catches d at e to the hind part, b, for hooking onto the studs f of the front part, a, for fastening the scraper together. `The catches are arms of a bar, g, extending along the back of the part b of the scraper over the lever h, by which they are released at any time when the scraper is to be dumped, the lever being extended upward and backward from the scraper suitably for being lifted by an attendant standing behind the machine when it is desiredto dump the scraper. When lever h swings down and the two parts of the scraper close together, the lever `drops a little lower than the rod` g, allowing it to close the catches d on the studs j' by gravity. Ve suspend the scraper by chains i and j from the frame 7c of a truck, the chains being connected to the front ends of the sides of the scraper by bars Z, pivoted at Z2 to the scraper, and chains j being connected to link-bars m, that are pivoted to the sides of the part b a little in advance of the back of thescraper,

'and the same distance from the middle joint` of the scraper, so that the load will dump itself by reason of the preponderance of weight between the link-bars Z` and m, and the chains all adjusted for length, so that the load `will balance back of them alittle, to facilitate the raising of the front end ofthe scraper a little `over rollers p in the truck-frame, and extend to and are connected to segmental pulleys q e and t on a shaft, a, supported in brackets o above the top of the truck-frame, and having a long lever, w, extending upward when the scraper is down in the working position, and connected at its free end with a cord, w, extending back to a drum, y, located at the back end of the truck-frame, and having lever-arms e, for turning it to pull down the lever w and raise the scraper. The segmental pulleys q, to which the chains of the front end of the scraper are connected, are eccentric to the shaft u, and have longer sweep than the other pulleys, t, to which chains j are connected, for the purpose of raising the front open end of the scraper higher than the back end, to retain the load while being carried on the truck. The drum y y also has an eccentric extension,` c', whereon the cord as winds at the beginning of the movement, to have greater sweep and quicker 'action at the beginning of the operation.

The pulleys p are mounted on the truck frame by supportingbrackets b', that are adjustably attached to the frame by bolts d', that are adjustable along the slots c ofthe frame to shift the scraper, so that the amount ofthe load carried on the necks of the horses through the tongue f `may be regulated at will, and the bolts g', connecting the cranked axle h to the frame, are fitted in slotted holes, (dotted, Fig. 1,) to allow of altering the balance of the frame on the wheels t'. For applying the draft to the scraper, we suspend the evenerj as low under the tongue IOO as the top of the scraper, or thereabout, by the frame 7c', and hitch the team to it, and also hitch the scraper to the lower end of the frame by the chains Z', which are attached to draftbars Z3, also pivoted to the scraper at?, which causes the draft to be applied directly to the scraper, so that when it is let down into the ground for talring its load it is practically independent of the wheels. 'From the eye n a rod, which hooks into said eye, will extend to the end of the pole for the loading team to be hitched to it.

In the use of large scrapers it may be de` sirable to employ the power of a team of horses to raise the scraper by the lever w, for which we propose to have a hook, m, attached `to the lever, whereto a chain may be hitched,

said chain extending down under a pulley on the axle, inside of the crank, and thence tothe under side of the pole f and to the end, where the team for raising the scraper may be hitched to said chain to pull down the lever w and raise the scraper. The drum y has a ratchet, o, and pawl p', to hold lever w when down.

Having thus described our invention, what we desire to claim and secure by VLetters Patent isl. The combination, with the scrapera b, suspended by chains fi j from the truclnof the guide-pulleys p, segmental pulleys q t on a shaft, u, the segmental pulleys q, to which the frontend of the scraper is connected, being eccentric to the shaft u, and having a longer sweep than the pulleys t, and the adjustinglever w, substantially as described.

2., The combination, with the lever w, segmental pulleys q t, the former being arranged eecentrically to the shaft u, and having a longer sweep than the pulleys t, andchains t j, of the drum i, having au eccentric extension, a, cord x, levers z, and a scraper suspended from a truck, substantially as described.

3. The combination, with a truck, of a scraper consisting of two parts, a and b, jointed together, and provided with fasteningcatches d, connecting-bar g, and lever h, and being suspended from the truck by the chains i j, substantially as described.

JOHN F. OCONNOR. STERLING M. VILLAMS.

Witnesses:

H. HOEHN, H. A. VORLEY. 

